# SDR 29GA34421091313

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2013
- Submitted: October 4, 2013
- Operation: Air carrier
- Aircraft: N344AG
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B444
- Aircraft time: 30,076 hours, 33,847 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 7769106
- Part serial: 870610
- Condition: Failed
- Location: Left
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/29GA34421091313

## Discrepancy

F/A REPORTED SMELLING ELECTRICAL BURNING.  ALSO REPORTED HEARING A GRINDING SOUND ON DESCENT.  RETURNED TO DEPARTURE LANDED SAFELY.  REPLACED LEFT AIR CYCLE MACHINE.

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